If all the purchases were made on day 1, then sure. That's a lot more playing time than I usually get out of a game anyways. For games/accessories I bought after that – no, I'd expect a refund.

The hardware itself was cheap anyways – like $50 for a Chromecast + controller (and even cheaper with deals and bundles), and you can still use both after the service shuts down. It was the $60-80 per game that was the deal breaker.